Genetic Variant RHOT2:p.Pro48Thr (chr16-668533-C-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_138769.3(RHOT2):c.142C>A(p.Pro48Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000152 in 1,610,460 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

RHOT2
NM_138769.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.77

Variant links:

Genes affected

RHOT2 (HGNC:21169): (ras homolog family member T2) This gene encodes a member of the Rho family of GTPases. The encoded protein is localized to the outer mitochondrial membrane and plays a role in mitochondrial trafficking and fusion-fission dynamics. [provided by RefSeq, Nov 2011]

RHOT2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.766

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RHOT2	NM_138769.3 link	c.142C>A	p.Pro48Thr	missense_variant	Exon 3 of 19	ENST00000315082.9	NP_620124.1	Q8IXI1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RHOT2	ENST00000315082.9 link	c.142C>A	p.Pro48Thr	missense_variant	Exon 3 of 19	1	NM_138769.3	ENSP00000321971.4		Q8IXI1-1

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

151958

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000265

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000699

AC:

AN:

243070

Hom.:

AF XY:

0.0000751

AC XY:

AN XY:

133242

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000295

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000146

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000155

AC:

226

AN:

1458386

Hom.:

Cov.:

AF XY:

0.000139

AC XY:

101

AN XY:

725488

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000194

Gnomad4 OTH exome

AF:

0.000149

GnomAD4 genome

AF:

0.000125

AC:

AN:

152074

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000265

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000599

Hom.:

Bravo

AF:

0.000113

ESP6500AA

AF:

0.000234

AC:

ESP6500EA

AF:

0.000237

AC:

ExAC

AF:

0.0000831

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000297

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 01, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.142C>A (p.P48T) alteration is located in exon 3 (coding exon 3) of the RHOT2 gene. This alteration results from a C to A substitution at nucleotide position 142, causing the proline (P) at amino acid position 48 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.90

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.12

CADD

Pathogenic

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.46

T;.;T

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Uncertain

0.92

LIST_S2

Pathogenic

1.0

D;D;D

M_CAP

Pathogenic

0.38

MetaRNN

Pathogenic

0.77

D;D;D

MetaSVM

Uncertain

0.064

MutationAssessor

Uncertain

2.1

M;.;.

PrimateAI

Pathogenic

0.83

PROVEAN

Pathogenic

-6.6

D;.;D

REVEL

Uncertain

0.59

Sift

Pathogenic

0.0

D;.;D

Sift4G

Uncertain

0.0080

D;T;D

Polyphen

1.0

D;.;.

Vest4

0.73

MVP

0.80

MPC

0.22

ClinPred

0.65

GERP RS

3.9

RBP_binding_hub_radar

1.0

RBP_regulation_power_radar

2.7

Varity_R

0.95

gMVP

0.70

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over